MCQOPTIONS
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MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1251. |
In Amoeba, the plane of cytoplasmic division is in which direction ? |
| A. | One direction |
| B. | Two direction |
| C. | Three direction |
| D. | Any direction |
| Answer» E. | |
| 1252. |
What are Internal buds known as ? |
| A. | Gene |
| B. | Clone |
| C. | Gemmules |
| D. | Bud |
| Answer» D. Bud | |
| 1253. |
During which phase an living organism becomes sexually mature ? |
| A. | Childhood |
| B. | Adolesence |
| C. | Old age |
| D. | None of these |
| Answer» C. Old age | |
| 1254. |
Which type of spores are produce by pteridophytes and gymnosperms ? |
| A. | Spore |
| B. | Somatic spores |
| C. | Heterospores |
| D. | Homospores |
| Answer» D. Homospores | |
| 1255. |
Which of the following Plant shows root cutting ? |
| A. | Sugarcane |
| B. | Croton |
| C. | Rose |
| D. | Lemon |
| Answer» E. | |
| 1256. |
What do a stock have ? |
| A. | Bud |
| B. | Branches |
| C. | Leaves |
| D. | Possess regular or irregular roots |
| Answer» E. | |
| 1257. |
In Which plant stem is used for vegetative propagation of the plant ? |
| A. | Lemon, grape |
| B. | Hibiscus, mogra |
| C. | Sugarcane, rose |
| D. | Mango, apple |
| Answer» D. Mango, apple | |
| 1258. |
Grafting is useful for production of...... |
| A. | Agriculture |
| B. | Horticulture |
| C. | For inducing flowering |
| D. | Fruit yield plants |
| Answer» E. | |
| 1259. |
In plants, the phase from germination to grow till its maturity is known as ? |
| A. | Linear growth phase |
| B. | Germination phase |
| C. | Flowering phase |
| D. | None of the above |
| Answer» B. Germination phase | |
| 1260. |
Which of the following pair is incorrect ? |
| A. | Lawn grass-runner |
| B. | Pistia-offset |
| C. | Nephrolepis-stolons |
| D. | Sellaginella-Suckers |
| Answer» E. | |
| 1261. |
If vegetative growth of the plant takes place but flower production does not occur-then what couldbe the reason for this? |
| A. | Imbalance of hormone |
| B. | Photoperiod |
| C. | Imbalance of sugar in water |
| D. | Irregular transport of solute. |
| Answer» C. Imbalance of sugar in water | |
| 1262. |
Other than Euglena, which of the following organism divides by longitudinal division ? |
| A. | Amoeba |
| B. | Paramoecium |
| C. | Vorticella |
| D. | Plasmodium |
| Answer» D. Plasmodium | |
| 1263. |
Which of the following is associated with vegetative reproduction? |
| A. | Combination of pre existing cytoplasm. |
| B. | Tissue culture |
| C. | Endo static fertilization |
| D. | (a) and (b) Both. |
| Answer» D. (a) and (b) Both. | |
| 1264. |
Identify the mis-match statement regarding post fertilization events from the following statements. |
| A. | Wall of ovary is converted in to pericarp. |
| B. | Outer integument is converted in inner integument |
| C. | Triploid nucleus develops as endosperm |
| D. | Ovary is developed as fruit. |
| Answer» B. Outer integument is converted in inner integument | |
| 1265. |
Find out the correct sequence from the given figure. |
| A. | Bud grafting, grafting, crown grafting, toungue grafting, side grafting |
| B. | Bud grafting, side grafting, tongue grafting, wedge grafting, crown grafting |
| C. | Crown grafting, wedge grafting, tongue grafting, side grafting, bud grafting |
| D. | Bud grafting, side grafting, scion grafting, stock grafting |
| Answer» C. Crown grafting, wedge grafting, tongue grafting, side grafting, bud grafting | |
| 1266. |
Grafting is impossible in monocot-because (UTTRANCHAL PMT-2004) |
| A. | Vascular bundles are scattered. |
| B. | Meristem is absent |
| C. | Collateral open vascular bundle |
| D. | Radial vascular bundle. |
| Answer» C. Collateral open vascular bundle | |
| 1267. |
How does vegetative reproduction takes place in flowering plants ? |
| A. | Natural |
| B. | Artificial |
| C. | By chemicals |
| D. | Both a and b |
| Answer» E. | |
| 1268. |
Identify A,B and C in the following figure. |
| A. | A-node,B-bud,C-adventitious root |
| B. | A-bud,B-node,C-adventitious root |
| C. | A-adventitious root,B-node,C-bud |
| D. | A-node,B-adventitious root,C-bud |
| Answer» B. A-bud,B-node,C-adventitious root | |
| 1269. |
Which of the following animal shows longitudinal binary fission? |
| A. | Englena |
| B. | Plasmodium |
| C. | Planaria |
| D. | Paramoecium |
| Answer» E. | |
| 1270. |
Where does the culture of haploid pollen grain is useful in plant breeding? |
| A. | For production of better hybrid |
| B. | For production of homogametic organisms. |
| C. | For production of disease causing organisms |
| D. | None of this |
| Answer» D. None of this | |
| 1271. |
If primary spermetocyte have 2n=16 chromosomes during first meiotic division,in such case how many chromatids could be present in each secondary spermatocyte? |
| A. | 32 |
| B. | 8 |
| C. | 16 |
| D. | 24 |
| Answer» C. 16 | |
| 1272. |
Which tissue is required to be present in between stock and scion during grafting? |
| A. | Xylem |
| B. | Phloem |
| C. | Meristem |
| D. | Parenchyma. |
| Answer» C. Meristem | |
| 1273. |
What type of fruit will be produced by fixing the stock of sour juice producing branch on scion ofplant having sweet branch? |
| A. | Sweet and fibrou |
| B. | Sweet and juicy |
| C. | Sour and juicy |
| D. | Sour and fibrous |
| Answer» D. Sour and fibrous | |
| 1274. |
Haploid plants are obtained by culture of- |
| A. | Young leave |
| B. | Endosperm |
| C. | Pollen grain |
| D. | Root apex |
| Answer» C. Pollen grain | |
| 1275. |
The production of new plant from the maternal plant is called. (CPMT=2003) |
| A. | Vegetative reproduction |
| B. | Cutting |
| C. | Grafting |
| D. | Layering |
| Answer» B. Cutting | |
| 1276. |
Pollen tube enters the embryo sac through (AIIMS-2004) |
| A. | Any one synergid cell |
| B. | Directly penetrating the egg cell |
| C. | In between one synergid cell and secondary nucleus. |
| D. | The help of antipodal cells. |
| Answer» B. Directly penetrating the egg cell | |
| 1277. |
How man eggs will be formed from an ovary of a woman,in absence implantation of an embryo? |
| A. | 12 |
| B. | 06 |
| C. | 24 |
| D. | 48 |
| Answer» C. 24 | |
| 1278. |
Which of the following plant reproduces by leaf ? (DPMT-2003) |
| A. | Agave |
| B. | Bryophyllum |
| C. | Gladiolus |
| D. | Potato |
| Answer» C. Gladiolus | |
| 1279. |
With the help of which quick cell division could be induced? |
| A. | By T1 plasmid |
| B. | PBR-32 |
| C. | F-speed |
| D. | By sexual plasmid |
| Answer» C. F-speed | |
| 1280. |
Which of the following is example of amoeboid movement ? |
| A. | Algae |
| B. | Fungi |
| C. | Gamates of bryophyta |
| D. | Hydrilla |
| Answer» C. Gamates of bryophyta | |
| 1281. |
What is the name of the technique for the production of large number of top? |
| A. | Top production |
| B. | Organo genesis |
| C. | Micro culture |
| D. | Embryo culture |
| Answer» C. Micro culture | |
| 1282. |
Where does maturity is observed in the sporophytic stage of the plants? |
| A. | In gemina |
| B. | In primay structures |
| C. | In sporophylls |
| D. | In eggs. |
| Answer» C. In sporophylls | |
| 1283. |
Flowering due to low temperature is ......... |
| A. | Thermonasty |
| B. | Vernalization |
| C. | Nutation |
| D. | Photonasty |
| Answer» C. Nutation | |
| 1284. |
Which type of light is required in long day plants for flowering ? |
| A. | Red light |
| B. | More light than alloted period |
| C. | Less light than alloted time period |
| D. | All of the given |
| Answer» C. Less light than alloted time period | |
| 1285. |
Which plant show movement from intense light to dim light ? |
| A. | Volvox |
| B. | Lotus |
| C. | Hydrilla |
| D. | Plankton |
| Answer» B. Lotus | |
| 1286. |
From the given below which is short-day plant ? |
| A. | Paddy |
| B. | Wheat |
| C. | Oat |
| D. | Opium |
| Answer» B. Wheat | |
| 1287. |
Which of the following show movement by chemical ? |
| A. | Male gametes of bryophytes and pteridophytes |
| B. | Male gamets of fungi and algae |
| C. | Male gametes of gymanosperm and and angiosperms |
| D. | Flower of tulip and croccus |
| Answer» B. Male gamets of fungi and algae | |
| 1288. |
What is the rate of respiration during seed germination ? |
| A. | Slow |
| B. | Steady |
| C. | Rapid |
| D. | Zero |
| Answer» D. Zero | |
| 1289. |
Which physilogical reaction is essential for development leaftendril ? |
| A. | Curvature |
| B. | Nastism |
| C. | Circumnutation |
| D. | Tropism |
| Answer» D. Tropism | |
| 1290. |
Which is an essential temperature for more production of wheat by noting effect of low temperature ? |
| A. | °1to 20 C |
| B. | °28to30 C |
| C. | °1to10 C |
| D. | °25to30 C |
| Answer» D. °25to30 C | |
| 1291. |
In which structure thigmonasty is observed in simple form ? |
| A. | Leaf apex |
| B. | Shoot apex |
| C. | Root apex |
| D. | Leaf tendril |
| Answer» E. | |
| 1292. |
Which of the following plant shows rotational movement ? |
| A. | Volvox |
| B. | Chlamydomonas |
| C. | Hydrilla |
| D. | Mucilagenous fungi |
| Answer» D. Mucilagenous fungi | |
| 1293. |
Which of the following group show viviparous germination ? |
| A. | Rhizophora and Avicinnia |
| B. | Orchid and Rhizophora |
| C. | Maize and Bean |
| D. | Soyabean and Xanthium |
| Answer» B. Orchid and Rhizophora | |
| 1294. |
If temporary light is made available for dark phase of long day plant, what is observed ? |
| A. | Flowering will not occur |
| B. | Increase in flowering |
| C. | Decreasing in flowering |
| D. | No change |
| Answer» B. Increase in flowering | |
| 1295. |
Which of the following is an example of thermonasty ? |
| A. | Lotu |
| B. | Crocus |
| C. | Mimosa |
| D. | Sunflower |
| Answer» C. Mimosa | |
| 1296. |
Which of the following option shows an examples of cilliary movement ? |
| A. | Zoo spores and Bryophyta |
| B. | Chlamydomonas |
| C. | Slime mould |
| D. | All the three a, b, c |
| Answer» C. Slime mould | |
| 1297. |
Which hormone is essential in pineapple for inducing flowering, without season ? |
| A. | Ethylene |
| B. | Zeatin |
| C. | Abscisic acid |
| D. | NAA |
| Answer» E. | |
| 1298. |
Where is phytochrome pigment present ? |
| A. | Fungi |
| B. | Algae |
| C. | Bryophyta |
| D. | Phanerogams |
| Answer» E. | |
| 1299. |
Photoperiodism is ......... |
| A. | Time table of day-night based on light |
| B. | Flowering plant |
| C. | Effect of length of day on flowering |
| D. | Irregular growth based on light |
| Answer» D. Irregular growth based on light | |
| 1300. |
Which of the following is found in high concentration in healthy leaf ? |
| A. | Cytokinin |
| B. | Gibberrelin |
| C. | Auxin |
| D. | Ethylene |
| Answer» D. Ethylene | |